The present study is on the reactive extraction of pimelic acid (heptanedioic acid) from dilute aqueous solutions by trioctylamine (TOA) in decan-1-ol. The equilibrium studies were performed at 298 K and the results were used to calculate the values of distribution coefficient (K_D), loading factor (Z) and degree of extraction (E%). The maximum K_D was obtained as 62.34 when initial concentrations of pimelic acid and TOA were 0.038 and 0.2 mol kg-1, respectively. The extraction efficiency was 98.27% under these conditions. Moreover, Z values between 0.184 and 2.934 were obtained in the ranges of parameters studied. The data presents the formation of 1:1 and 1:2 pimelic acid-TOA solvates in the organic phase. A solvatochromic model (LSER) was applied to the equilibrium data and the K_D values obtained using the model show a good fit to the experimental outcomes.
Compounds
#
Formula
Name
1
C7H12O4
1,7-heptanedioic acid
2
C10H22O
decan-1-ol
3
H2O
water
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.